On Wed, Feb 03, 2021 at 08:01:53AM +0100, Mauro Carvalho Chehab wrote:

> +	reg = devm_regulator_get_optional(dev, "pci");
> +	if (IS_ERR_OR_NULL(reg)) {
> +		if (PTR_ERR(reg) == -EPROBE_DEFER)
> +		    return PTR_ERR(reg);
> +	} else {
> +		ret = regulator_enable(reg);

This is still misuse of regulator_get_optional() for the same reason.